In chemistry terms the difference between isomeric and paranthracene
is that isomeric is exhibiting isomerism while paranthracene is an inert isomeric modification of anthracene.
As an adjective isomeric
is being an isomer.
As a noun paranthracene is
an inert isomeric modification of anthracene.
isomeric
English
Adjective
(-)
(chemistry, physics) Being an isomer.
(chemistry) Exhibiting isomerism.